Finding the Fourth Proportional to 12,368.90, 17,070.27 and 7,064.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,368.90 : 17,070.27 = 7,064.12 : x
2. Step 2: Convert to fraction form
   12,368.90/17,070.27 = 7,064.12/x
3. Step 3: Cross multiply
   12,368.90x = 17,070.27 × 7,064.12
4. Step 4: Simplify right side
   12,368.90x = 120,586,435.71
5. Step 5: Solve for x
   x = 120,586,435.71/12,368.90
6. Step 6: Final answer
   x = 9,749.16